[evince] libview: Replace deprecated symbol ev-media-player

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 39ad8408646788a85088840e79ed684f219c7d3a
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Tue Nov 13 00:29:19 2018 -0300

    libview: Replace deprecated symbol ev-media-player

 libview/ev-media-player.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libview/ev-media-player.c b/libview/ev-media-player.c
index 1c7f1a2a..00a35853 100644
--- a/libview/ev-media-player.c
+++ b/libview/ev-media-player.c
@@ -414,7 +414,7 @@ ev_media_player_setup_media_controls (EvMediaPlayer *player)
                               gtk_image_new_from_icon_name ("media-playback-start-symbolic",
                                                             GTK_ICON_SIZE_MENU));
         gtk_button_set_label(GTK_BUTTON (player->play_button), NULL);
-        gtk_button_set_focus_on_click (GTK_BUTTON (player->play_button), FALSE);
+        gtk_widget_set_focus_on_click (player->play_button, FALSE);
 
         provider = gtk_css_provider_new ();
         gtk_css_provider_load_from_data (provider, "#ev-media-player-play-button { padding: 0px 8px 0px 8px; 
}", -1, NULL);